I used to make copy/paste of a PlantUML diagram from Eclipse to Word under Widows 7.
Since I migrated to Windows 10 copy/paste is still working but colours are altered.
Note: if you export to a file the colours are not altered.
I am using Eclipse Oxygen.2 Release (4.7.2) and PlantUML plugin 1.1.19. Do you know how to solve this issue?